| Kévin Redon | 9a12d68 | 2018-07-08 13:21:16 +0200 | [diff] [blame] | 1 | /* General utilities |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program; if not, write to the Free Software |
| 15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA |
| 16 | */ |
| Harald Welte | f64f688 | 2015-11-08 21:31:48 +0100 | [diff] [blame] | 17 | #pragma once |
| 18 | |
| 19 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| 20 | |
| Harald Welte | 9d3e382 | 2015-11-09 00:50:54 +0100 | [diff] [blame] | 21 | #ifdef __ARM |
| 22 | #define local_irq_save(x) \ |
| 23 | ({ \ |
| 24 | x = __get_PRIMASK(); \ |
| 25 | __disable_irq(); \ |
| 26 | }) |
| 27 | |
| 28 | #define local_irq_restore(x) \ |
| 29 | __set_PRIMASK(x) |
| 30 | #else |
| 31 | #warning "local_irq_{save,restore}() not implemented" |
| 32 | #define local_irq_save(x) |
| 33 | #define local_irq_restore(x) |
| 34 | #endif |